In the article titled “Brief Intervention for Patients With Problematic Drug Use Presenting in Emergency Departments: A Randomized Clinical Trial,” published online September 1, 2014, and also in the November 2014 print issue of JAMA Internal Medicine (2014;174[11]:1736-1745. doi:10.1001/jamainternmed.2014.4052), an error occurred in the byline, where the author’s name “Wendy Macias Konstantopoulos, MD, MPH” should have read “Wendy Macias-Konstantopoulos, MD, MPH.”